thodg/libgit2/tests/core/env.c

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• Hash : e54343a4
  Author :
  Date : 2019-06-29T09:17:32
  

  fileops: rename to "futils.h" to match function signatures Our file utils functions all have a "futils" prefix, e.g. `git_futils_touch`. One would thus naturally guess that their definitions and implementation would live in files "futils.h" and "futils.c", respectively, but in fact they live in "fileops.h". Rename the files to match expectations.

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• tests/core/env.c

• #include "clar_libgit2.h"
  #include "futils.h"
  #include "sysdir.h"
  #include "path.h"
  
  #ifdef GIT_WIN32
  #define NUM_VARS 5
  static const char *env_vars[NUM_VARS] = {
  	"HOME", "HOMEDRIVE", "HOMEPATH", "USERPROFILE", "PROGRAMFILES"
  };
  #else
  #define NUM_VARS 1
  static const char *env_vars[NUM_VARS] = { "HOME" };
  #endif
  
  static char *env_save[NUM_VARS];
  
  static char *home_values[] = {
  	"fake_home",
  	"f\xc3\xa1ke_h\xc3\xb5me", /* all in latin-1 supplement */
  	"f\xc4\x80ke_\xc4\xa4ome", /* latin extended */
  	"f\xce\xb1\xce\xba\xce\xb5_h\xce\xbfm\xce\xad",  /* having fun with greek */
  	"fa\xe0" "\xb8" "\x87" "e_\xe0" "\xb8" "\x99" "ome", /* thai characters */
  	"f\xe1\x9c\x80ke_\xe1\x9c\x91ome", /* tagalog characters */
  	"\xe1\xb8\x9f\xe1\xba\xa2" "ke_ho" "\xe1" "\xb9" "\x81" "e", /* latin extended additional */
  	"\xf0\x9f\x98\x98\xf0\x9f\x98\x82", /* emoticons */
  	NULL
  };
  
  void test_core_env__initialize(void)
  {
  	int i;
  	for (i = 0; i < NUM_VARS; ++i)
  		env_save[i] = cl_getenv(env_vars[i]);
  }
  
  static void set_global_search_path_from_env(void)
  {
  	cl_git_pass(git_sysdir_set(GIT_SYSDIR_GLOBAL, NULL));
  }
  
  static void set_system_search_path_from_env(void)
  {
  	cl_git_pass(git_sysdir_set(GIT_SYSDIR_SYSTEM, NULL));
  }
  
  void test_core_env__cleanup(void)
  {
  	int i;
  	char **val;
  
  	for (i = 0; i < NUM_VARS; ++i) {
  		cl_setenv(env_vars[i], env_save[i]);
  		git__free(env_save[i]);
  		env_save[i] = NULL;
  	}
  
  	/* these will probably have already been cleaned up, but if a test
  	 * fails, then it's probably good to try and clear out these dirs
  	 */
  	for (val = home_values; *val != NULL; val++) {
  		if (**val != '\0')
  			(void)p_rmdir(*val);
  	}
  
  	cl_sandbox_set_search_path_defaults();
  }
  
  static void setenv_and_check(const char *name, const char *value)
  {
  	char *check;
  
  	cl_git_pass(cl_setenv(name, value));
  	check = cl_getenv(name);
  
  	if (value)
  		cl_assert_equal_s(value, check);
  	else
  		cl_assert(check == NULL);
  
  	git__free(check);
  }
  
  void test_core_env__0(void)
  {
  	git_buf path = GIT_BUF_INIT, found = GIT_BUF_INIT;
  	char testfile[16], tidx = '0';
  	char **val;
  	const char *testname = "testfile";
  	size_t testlen = strlen(testname);
  
  	strncpy(testfile, testname, sizeof(testfile));
  	cl_assert_equal_s(testname, testfile);
  
  	for (val = home_values; *val != NULL; val++) {
  
  		/* if we can't make the directory, let's just assume
  		 * we are on a filesystem that doesn't support the
  		 * characters in question and skip this test...
  		 */
  		if (p_mkdir(*val, 0777) != 0) {
  			*val = ""; /* mark as not created */
  			continue;
  		}
  
  		cl_git_pass(git_path_prettify(&path, *val, NULL));
  
  		/* vary testfile name in each directory so accidentally leaving
  		 * an environment variable set from a previous iteration won't
  		 * accidentally make this test pass...
  		 */
  		testfile[testlen] = tidx++;
  		cl_git_pass(git_buf_joinpath(&path, path.ptr, testfile));
  		cl_git_mkfile(path.ptr, "find me");
  		git_buf_rtruncate_at_char(&path, '/');
  
  		cl_assert_equal_i(
  			GIT_ENOTFOUND, git_sysdir_find_global_file(&found, testfile));
  
  		setenv_and_check("HOME", path.ptr);
  		set_global_search_path_from_env();
  
  		cl_git_pass(git_sysdir_find_global_file(&found, testfile));
  
  		cl_setenv("HOME", env_save[0]);
  		set_global_search_path_from_env();
  
  		cl_assert_equal_i(
  			GIT_ENOTFOUND, git_sysdir_find_global_file(&found, testfile));
  
  #ifdef GIT_WIN32
  		setenv_and_check("HOMEDRIVE", NULL);
  		setenv_and_check("HOMEPATH", NULL);
  		setenv_and_check("USERPROFILE", path.ptr);
  		set_global_search_path_from_env();
  
  		cl_git_pass(git_sysdir_find_global_file(&found, testfile));
  
  		{
  			int root = git_path_root(path.ptr);
  			char old;
  
  			if (root >= 0) {
  				setenv_and_check("USERPROFILE", NULL);
  				set_global_search_path_from_env();
  
  				cl_assert_equal_i(
  					GIT_ENOTFOUND, git_sysdir_find_global_file(&found, testfile));
  
  				old = path.ptr[root];
  				path.ptr[root] = '\0';
  				setenv_and_check("HOMEDRIVE", path.ptr);
  				path.ptr[root] = old;
  				setenv_and_check("HOMEPATH", &path.ptr[root]);
  				set_global_search_path_from_env();
  
  				cl_git_pass(git_sysdir_find_global_file(&found, testfile));
  			}
  		}
  #endif
  
  		(void)p_rmdir(*val);
  	}
  
  	git_buf_dispose(&path);
  	git_buf_dispose(&found);
  }
  
  
  void test_core_env__1(void)
  {
  	git_buf path = GIT_BUF_INIT;
  
  	cl_assert_equal_i(
  		GIT_ENOTFOUND, git_sysdir_find_global_file(&path, "nonexistentfile"));
  
  	cl_git_pass(cl_setenv("HOME", "doesnotexist"));
  #ifdef GIT_WIN32
  	cl_git_pass(cl_setenv("HOMEPATH", "doesnotexist"));
  	cl_git_pass(cl_setenv("USERPROFILE", "doesnotexist"));
  #endif
  	set_global_search_path_from_env();
  
  	cl_assert_equal_i(
  		GIT_ENOTFOUND, git_sysdir_find_global_file(&path, "nonexistentfile"));
  
  	cl_git_pass(cl_setenv("HOME", NULL));
  #ifdef GIT_WIN32
  	cl_git_pass(cl_setenv("HOMEPATH", NULL));
  	cl_git_pass(cl_setenv("USERPROFILE", NULL));
  #endif
  	set_global_search_path_from_env();
  	set_system_search_path_from_env();
  
  	cl_assert_equal_i(
  		GIT_ENOTFOUND, git_sysdir_find_global_file(&path, "nonexistentfile"));
  
  	cl_assert_equal_i(
  		GIT_ENOTFOUND, git_sysdir_find_system_file(&path, "nonexistentfile"));
  
  #ifdef GIT_WIN32
  	cl_git_pass(cl_setenv("PROGRAMFILES", NULL));
  	set_system_search_path_from_env();
  
  	cl_assert_equal_i(
  		GIT_ENOTFOUND, git_sysdir_find_system_file(&path, "nonexistentfile"));
  #endif
  
  	git_buf_dispose(&path);
  }
  
  static void check_global_searchpath(
  	const char *path, int position, const char *file, git_buf *temp)
  {
  	git_buf out = GIT_BUF_INIT;
  
  	/* build and set new path */
  	if (position < 0)
  		cl_git_pass(git_buf_join(temp, GIT_PATH_LIST_SEPARATOR, path, "$PATH"));
  	else if (position > 0)
  		cl_git_pass(git_buf_join(temp, GIT_PATH_LIST_SEPARATOR, "$PATH", path));
  	else
  		cl_git_pass(git_buf_sets(temp, path));
  
  	cl_git_pass(git_libgit2_opts(
  		GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, temp->ptr));
  
  	/* get path and make sure $PATH expansion worked */
  	cl_git_pass(git_libgit2_opts(
  		GIT_OPT_GET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, &out));
  
  	if (position < 0)
  		cl_assert(git__prefixcmp(out.ptr, path) == 0);
  	else if (position > 0)
  		cl_assert(git__suffixcmp(out.ptr, path) == 0);
  	else
  		cl_assert_equal_s(out.ptr, path);
  
  	/* find file using new path */
  	cl_git_pass(git_sysdir_find_global_file(temp, file));
  
  	/* reset path and confirm file not found */
  	cl_git_pass(git_libgit2_opts(
  		GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, NULL));
  	cl_assert_equal_i(
  		GIT_ENOTFOUND, git_sysdir_find_global_file(temp, file));
  
  	git_buf_dispose(&out);
  }
  
  void test_core_env__2(void)
  {
  	git_buf path = GIT_BUF_INIT, found = GIT_BUF_INIT;
  	char testfile[16], tidx = '0';
  	char **val;
  	const char *testname = "alternate";
  	size_t testlen = strlen(testname);
  
  	strncpy(testfile, testname, sizeof(testfile));
  	cl_assert_equal_s(testname, testfile);
  
  	for (val = home_values; *val != NULL; val++) {
  
  		/* if we can't make the directory, let's just assume
  		 * we are on a filesystem that doesn't support the
  		 * characters in question and skip this test...
  		 */
  		if (p_mkdir(*val, 0777) != 0 && errno != EEXIST) {
  			*val = ""; /* mark as not created */
  			continue;
  		}
  
  		cl_git_pass(git_path_prettify(&path, *val, NULL));
  
  		/* vary testfile name so any sloppiness is resetting variables or
  		 * deleting files won't accidentally make a test pass.
  		 */
  		testfile[testlen] = tidx++;
  		cl_git_pass(git_buf_joinpath(&path, path.ptr, testfile));
  		cl_git_mkfile(path.ptr, "find me");
  		git_buf_rtruncate_at_char(&path, '/');
  
  		/* default should be NOTFOUND */
  		cl_assert_equal_i(
  			GIT_ENOTFOUND, git_sysdir_find_global_file(&found, testfile));
  
  		/* try plain, append $PATH, and prepend $PATH */
  		check_global_searchpath(path.ptr,  0, testfile, &found);
  		check_global_searchpath(path.ptr, -1, testfile, &found);
  		check_global_searchpath(path.ptr,  1, testfile, &found);
  
  		/* cleanup */
  		cl_git_pass(git_buf_joinpath(&path, path.ptr, testfile));
  		(void)p_unlink(path.ptr);
  		(void)p_rmdir(*val);
  	}
  
  	git_buf_dispose(&path);
  	git_buf_dispose(&found);
  }
  
  void test_core_env__substitution(void)
  {
    git_buf buf = GIT_BUF_INIT, expected = GIT_BUF_INIT;
  
    /* Set it to something non-default so we have controllable values */
    cl_git_pass(git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, "/tmp/a"));
    cl_git_pass(git_libgit2_opts(GIT_OPT_GET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, &buf));
    cl_assert_equal_s("/tmp/a", buf.ptr);
  
    git_buf_clear(&buf);
    cl_git_pass(git_buf_join(&buf, GIT_PATH_LIST_SEPARATOR, "$PATH", "/tmp/b"));
    cl_git_pass(git_libgit2_opts(GIT_OPT_SET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, buf.ptr));
    cl_git_pass(git_libgit2_opts(GIT_OPT_GET_SEARCH_PATH, GIT_CONFIG_LEVEL_GLOBAL, &buf));
  
    cl_git_pass(git_buf_join(&expected, GIT_PATH_LIST_SEPARATOR, "/tmp/a", "/tmp/b"));
    cl_assert_equal_s(expected.ptr, buf.ptr);
  
    git_buf_dispose(&expected);
    git_buf_dispose(&buf);
  }
  

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